Report Generated 10/01/2023 at 2232

Page Description

2 - Mean Daily Water Temperature, Release Flow Rates and Air Temperatures with Monthly Averages

3 - Sacramento River Mean Daily Water Temperature Plot

4 - Trinity River Mean Daily Water Temperature Plot

5 - Shasta Lake Isothermobaths & Cold Water Pool Statistics

14 - Trinity Lake Isothermobaths & Cold Water Pool Statistics

23 - Whiskeytown Lake Isothermobaths & Cold Water Pool Statistics

x - TCD Configuration (External Link)

All Data in this Report is Preliminary and Subject to Change

Northern CVP Water Temperature Report

September - 2023
Shasta 

Generation 

Spring 

Creek P.P.

Keswick 

Total BSF RDB

Aug 8684 529 9920 78.6 79.2

09/01 49.8 49.1 57.6 50.6 51.0 51.8 53.2 54.7 56.2 56.9 50.8 54.5 59.0 7257 499 8390 70.5 65.1 67.2

09/02 49.9 49.2 57.3 50.2 50.7 51.4 53.3 54.3 55.3 57.5 50.6 55.2 58.3 7074 502 8217 69.0 65.9 66.2

09/03 49.8 48.9 57.6 50.8 51.2 52.0 53.9 55.3 56.5 57.6 50.3 56.8 60.6 7220 529 7989 74.0 68.9 69.1

09/04 49.8 49.1 57.6 50.8 51.4 52.3 54.3 56.1 57.6 58.0 50.2 56.7 61.5 7000 496 7993 74.5 70.0 71.2

09/05 50.1 ? 49.3 58.1 50.9 51.4 52.2 54.3 56.1 57.8 58.1 50.4 57.0 61.9 6880 483 7995 77.5 71.8 73.4

09/06 50.1 ? 49.4 58.2 51.0 51.7 52.5 54.5 56.3 57.9 58.1 50.4 56.9 62.1 6988 492 8004 78.0 72.5 73.8

09/07 50.1 49.5 58.2 51.1 51.7 52.5 54.6 56.5 58.1 58.5 50.6 56.7 61.5 6874 500 8017 77.0 71.2 73.1

09/08 49.7 ? 49.2 58.3 51.3 51.8 52.7 54.6 56.3 58.0 58.0 50.8 57.0 61.6 6762 514 7896 77.0 71.0 73.5

09/09 49.6 ? 48.9 58.4 51.2 51.8 52.7 54.6 56.3 57.9 57.7 51.0 56.8 61.6 7901 532 7789 77.5 70.8 73.7

09/10 49.7 48.8 58.2 50.8 51.4 52.2 54.3 56.1 57.8 57.5 51.2 56.8 61.4 6343 672 7692 78.0 71.2 74.8

09/11 49.9 48.9 58.6 50.9 51.5 # 54.3 ? 55.8 ? 57.4 57.7 51.2 56.7 61.0 6902 494 7685 78.5 71.8 67.9

09/12 49.5 # 58.5 50.9 51.5 # 54.2 55.9 ? 57.5 57.9 51.1 57.1 61.5 6769 496 7701 79.0 72.9 72.8

09/13 49.4 # 58.6 51.4 52.0 52.8 54.6 56.2 57.7 58.1 50.8 57.1 61.8 6401 1061 7649 82.5 75.0 77.1

09/14 49.2 ? 48.1 58.8 51.3 51.9 52.8 54.8 56.6 ? 58.2 57.9 50.9 56.7 61.6 6432 946 7597 81.5 75.3 79.2

09/15 49.5 ? 48.9 58.7 51.1 51.7 52.6 54.6 56.3 58.1 57.1 50.3 56.3 61.0 6230 962 7447 81.0 74.2 75.0

09/16 49.5 ? 48.6 58.8 51.1 51.6 52.4 54.2 56.0 ? 57.8 54.6 50.0 55.7 60.4 6555 948 7294 80.0 73.5 73.5

09/17 49.4 ? 48.4 ? 58.9 ? 51.2 ? 51.8 ? 52.8 ? 54.5 ? 56.2 ? 57.9 ? 54.8 ? 50.1 ? 55.7 ? 60.4 7012 950 7098 78.0 72.0 72.0

09/18 ! ! ! ! ! ! ! ! ! ! ! ! ! 6264 925 7090 ! 75.5 76.6 75.2

09/19 49.8 ? 48.8 59.0 51.5 52.0 52.8 54.5 56.1 57.9 54.6 50.4 55.7 60.4 6059 1031 7176 76.5 71.0 70.8

09/20 49.3 48.4 58.9 51.5 52.0 52.8 54.7 56.2 57.8 54.1 50.1 54.9 59.2 6518 970 7250 75.0 71.0 71.8

09/21 48.9 47.9 58.9 51.8 52.2 52.9 54.2 55.4 56.8 53.5 49.8 53.5 57.9 5553 1156 7345 73.0 69.1 70.2

09/22 49.1 48.1 59.0 51.0 51.6 52.5 54.0 55.1 56.4 53.2 49.7 53.2 57.0 5637 959 6900 67.5 62.9 66.0

09/23 49.4 47.9 58.8 50.8 51.3 52.2 53.6 54.8 56.3 53.3 49.6 53.4 56.9 5715 942 6946 68.0 62.3 64.6

09/24 49.1 ? 47.8 58.7 50.9 51.3 52.1 53.6 54.8 ? 56.2 53.5 49.5 53.9 57.4 5309 918 6722 70.5 64.0 65.6

09/25 49.3 ? 48.2 58.7 51.0 51.1 51.6 53.3 54.7 56.0 52.6 49.5 52.9 56.5 5486 960 6679 65.5 61.9 63.2

09/26 49.1 48.0 58.5 50.8 51.2 52.1 53.5 54.7 56.1 53.6 49.4 53.6 56.9 5571 956 6638 68.5 65.2 65.8

09/27 49.3 48.3 58.5 50.7 51.2 52.1 53.5 ? 54.6 56.0 53.4 49.3 53.2 56.8 5924 513 6537 67.0 62.8 66.5

09/28 49.0 48.2 58.3 50.6 51.1 52.1 53.6 ? 54.7 56.1 53.5 49.3 53.2 ? 56.8 6191 510 6567 74.0 64.0 67.7

09/29 49.7 ? 48.6 58.5 50.2 50.6 51.4 52.9 54.1 55.5 53.1 49.5 52.2 55.9 6191 500 6404 66.5 61.0 64.7

09/30 50.1 ? 48.4 58.4 50.3 50.7 51.6 52.8 ? 54.0 55.1 53.6 49.7 52.5 55.7 6008 551 6395 67.0 61.7 61.5

-

Sep 6434 732 7370 74.3 68.9 70.2

193026 21967 221102

Legend Notes 382859 43571 438547

? = 1-9 hours of data missing (Average includes estimations) 1 Temperatures are weighted averages based on individual penstock flow and temperature

! = 10 or more hours of data missing (Average not calculated) Highlighted cells in the TCD column indicate a TCD change was made on that day

# = Station out of service 2 Current Clear Creek River control point (see page 4 for more details)

↑ = Record high air temperature

↓ = Record low air temperature

 = Monthly Averages

49.6 48.6 58.4 51.5 54.0

D

A

T

E

49.9 48.7

CCR2 TCD SAC 1 SHD SPP1 KWK

54.8 50.7 51.2 52.0 54.0 55.9

Mean Daily Air 

Temperatures (°F)

RDD

84.5

Total CFS

59.5

Mean Daily 

Release (CFS)

NFH

64.7

Mean Daily Water Temperatures (°F)

52.2

BND IGO

51.0

BSF

52.3 55.5

Total AF

57.8 57.3

RDB

57.0 55.8

LWS

50.2 55.2

DGC3

58.4

2
Code Body of Water Location1 CDEC Link River Point Temp. (°F) Begin Date End Date

TCD N/A Shasta Power Plant N/A Sacramento SAC 54.5 06/07/2022 5/14/2023

SHD Sacramento River 0.3 miles downstream of Shasta Power Plant Click Here Sacramento CCR 53.5 05/14/2023 TBD

SPP N/A Spring Creek Power Plant N/A

KWK Sacramento River 0.8 miles downstream of Keswick Dam Click Here

SAC Sacramento River 4.8 miles downstream of Keswick Dam Click Here

CCR Sacramento River 9.7 miles downstream of Keswick Dam Click Here

BSF Sacramento River 25 miles downstream of Keswick Dam Click Here

JLF Sacramento River 34 miles downstream of Keswick Dam Click Here

BND Sacramento River 41 miles downstream of Keswick Dam Click Here Notes

RDB Sacramento River 58 miles downstream of Keswick Dam Click Here

IGO Clear Creek 7.3 miles downstream of Whiskeytown Dam Click Here 1 Distances are approximate

Station Details Water Right Temperature Control Points

40

48

56

64

72

80

88

96

104

112

120

40

42

44

46

48

50

52

54

56

58

60

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Air Temperature (°F)

Water Temperature (°F)

Sacramento River Mean Daily Temperatures

Redding Air (Observed and Forecasted) TCD KWK SAC CCR BSF

3
Code Body of Water Location1 CDEC Link River Point Temp. (°F) Begin Date End Date

LWS Trinity River 1.1 miles downstream of Lewiston Dam Click Here Trinity DGC 56 Sep-15 Oct-01

DGC Trinity River 19 miles downstream of Lewiston Dam Click Here Trinity NFH 56 Oct-01 Dec-31

NFH Trinity River 38 miles downstream of Lewiston Dam Click Here

 Notes

1 Distances are approximate

Station Details Water Right Temperature Control Points

45

50

55

60

65

70

75

80

85

90

95

100

105

110

115

120

40

43

46

49

52

55

58

61

64

67

70

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Air Temperature (°F)

Water Temperature (°F)

Trinity River Mean Daily Temperatures

Redding Air (Observed and Forecasted) LWS DGC NFH

4
Updated 09/27/2023 at 1535

Latest Profile Date: 09/27/2023

Page Description

6 - Shasta Lake Isothermobaths Plot

7 - Shasta Lake Cold Water Pool Volume ≤52°F

8 - Shasta Lake Cold Water Pool Volume ≤50°F

9 - Shasta Lake Cold Water Pool Volume ≤48°F

10 - Shasta Lake Cold Water Pool Volume ≤52°F - Percent Exceedances

11 - Shasta Lake Cold Water Pool Volume ≤50°F - Percent Exceedances

12 - Shasta Lake Cold Water Pool Volume ≤48°F - Percent Exceedances

13 - Shasta Lake Cold Water Pool Comparison by Year

Shasta Lake Isothermobaths & Cold Water Pool Statistics

2023

5
6

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
7

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤52°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
8

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤50°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
9

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤48°F

Avg (1998-2022) 2014 2015 2016 2019 2022 2023
10

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤52°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
11

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤50°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
12

0

500

1000

1500

2000

2500

3000

3500

4000

4500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Shasta Lake Cold Water Pool Volume ≤48°F - Percent Exceedances (1998-2022)

2023 95 90 75 50 25 10 5
Sep-27

2023 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

1998 -1036 -1038 -960 1011 -78 -88 -97 88

1999 -614 -602 -561 592 -46 -51 -57 51

2000 -970 -971 -930 957 -73 -82 -94 83

2001 -1025 -933 -807 922 -77 -79 -82 79

2002 -846 -773 -633 751 -63 -66 -64 64

2003 -843 -931 -933 902 -63 -79 -94 79

2004 -1143 -1054 -921 1039 -86 -89 -93 89

2005 -1097 -1035 -922 1018 -82 -88 -93 88

2006 -826 -779 -739 781 -62 -66 -75 68

2007 -1074 -965 -839 960 -80 -82 -85 82

2008 -1201 -1071 -911 1061 -90 -91 -92 91

2009 -1094 -990 -854 979 -82 -84 -86 84

2010 -549 -626 -680 618 -41 -53 -69 54

2011 -390 -435 -439 422 -29 -37 -44 37

2012 -700 -643 -620 654 -52 -54 -63 57

2013 -963 -846 -724 844 -72 -72 -73 72

2014 -1244 -1112 -949 1102 -93 -94 -96 94

2015 -1039 -931 -911 960 -78 -79 -92 83

2016 -532 -530 -643 568 -40 -45 -65 50

2017 -474 -545 -532 517 -36 -46 -54 45

2018 -799 -751 -785 778 -60 -64 -79 68

2019 -331 -377 -463 390 -25 -32 -47 35

2020 -958 -927 -895 927 -72 -79 -91 80

2021 -1242 -1105 -955 1101 -93 -94 -97 94

2022 -1131 -1024 -887 1014 -85 -87 -90 87

2023 0 0 0 0 0 0 0 0

∆ TAF % ∆

Shasta Lake Cold Water Pool Comparison by Year (for Specified Date)

Historical - Current (Historical - Current) / Current

13
Updated 09/08/2023 at 0923

Latest Profile Date: 09/07/2023

Page Description

15 - Trinity Lake Isothermobaths Plot

16 - Trinity Lake Cold Water Pool Volume ≤52°F

17 - Trinity Lake Cold Water Pool Volume ≤50°F

18 - Trinity Lake Cold Water Pool Volume ≤48°F

19 - Trinity Lake Cold Water Pool Volume ≤52°F - Percent Exceedances

20 - Trinity Lake Cold Water Pool Volume ≤50°F - Percent Exceedances

21 - Trinity Lake Cold Water Pool Volume ≤48°F - Percent Exceedances

22 - Trinity Lake Cold Water Pool Comparison by Year

Trinity Lake Isothermobaths & Cold Water Pool Statistics

2023

14
15

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
16

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤52°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
17

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤50°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
18

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤48°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
19

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤52°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
20

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤50°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
21

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Trinity Lake Cold Water Pool Volume ≤48°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
Sep-07

2023 ≤52° ≤50° ≤48° Abs. Avg. ≤52° ≤50° ≤48° Abs. Avg.

2000 132 66 25 75 17 11 6 11

2001 9 40 52 34 1 6 11 6

2002 19 65 109 64 2 10 24 12

2003 323 216 119 220 42 35 26 34

2004 73 54 -1 43 10 9 0 6

2005 255 204 22 160 33 33 5 24

2006 370 326 231 309 49 52 50 50

2007 73 111 156 114 10 18 34 21

2008 -235 -220 -185 214 -31 -35 -40 35

2009 -314 -256 -228 266 -41 -41 -50 44

2010 63 8 -99 57 8 1 -22 10

2011 556 486 397 480 73 78 87 79

2012 339 392 423 385 45 63 92 67

2013 -130 -80 -48 86 -17 -13 -10 13

2014 -544 -432 -322 433 -71 -69 -70 70

2015 -554 -456 -336 449 -73 -73 -73 73

2016 -348 -326 -229 301 -46 -52 -50 49

2017 187 111 74 124 25 18 16 19

2018 157 206 231 198 21 33 51 35

2019 487 517 498 501 64 83 109 85

2020 -51 27 63 47 -7 4 14 8

2021 -476 -374 -276 375 -62 -60 -60 61

2022 -523 -428 -301 417 -69 -68 -66 68

2023 0 0 0 0 0 0 0 0

Trinity Cold Water Pool Comparison by Year (for Specified Date)

∆ TAF % ∆

Historic - Current (Historic - Current) / Current

22
Updated 09/15/2023 at 1119

Latest Profile Date: 09/14/2023

Page Description

24 - Whiskeytown Lake Isothermobaths Plot

25 - Whiskeytown Lake Cold Water Pool Volume ≤60°F

26 - Whiskeytown Lake Cold Water Pool Volume ≤58°F

27 - Whiskeytown Lake Cold Water Pool Volume ≤56°F

28 - Whiskeytown Lake Cold Water Pool Volume ≤60°F - Percent Exceedances

29 - Whiskeytown Lake Cold Water Pool Volume ≤58°F - Percent Exceedances

30 - Whiskeytown Lake Cold Water Pool Volume ≤56°F - Percent Exceedances

31 - Whiskeytown Lake Cold Water Pool Comparison by Year

Whiskeytown Lake Isothermobaths & Cold Water Pool Statistics

2023

23
24

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Isothermobaths Plot - 2023

<46 46-48 48-50 50-52 52-54 54-56 56-58 58-60

60-62 62-64 64-66 66-68 68-70 >70 Storage
25

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤60°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
26

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤58°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
27

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤56°F

Avg (2000-2022) 2014 2015 2016 2019 2022 2023
28

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤60°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
29

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤58°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
30

0

50

100

150

200

250

300

01/01 02/01 03/01 04/01 05/01 06/01 07/01 08/01 09/01 10/01 11/01 12/01

Volume (TAF)

Whiskeytown Lake Cold Water Pool Volume ≤56°F - Percent Exceedances (2000-2022)

2023 95 90 75 50 25 10 5
Sep-14

2023 ≤60° ≤58° ≤56° Abs. Avg. ≤60° ≤58° ≤56° Abs. Avg.

2000 86.7 114.4 102.8 101.3 142.7 409.3 473.0 341.7

2001 98.1 120.8 106.3 108.4 161.6 432.4 489.0 361.0

2002 97.1 118.9 86.9 100.9 159.8 425.4 399.7 328.3

2003 86.7 113.8 91.1 97.2 142.8 407.3 419.2 323.1

2004 94.0 108.0 57.5 86.5 154.8 386.4 264.7 268.6

2005 33.6 18.0 -13.6 21.7 55.3 64.3 -62.8 60.8

2006 108.2 128.3 112.4 116.3 178.1 459.2 517.4 384.9

2007 86.3 96.4 56.6 79.8 142.2 345.1 260.6 249.3

2008 84.7 104.0 80.7 89.8 139.5 372.2 371.4 294.3

2009 60.8 56.8 -16.1 44.6 100.2 203.1 -73.9 125.8

2010 49.5 23.5 -14.8 29.3 81.4 84.2 -68.2 78.0

2011 56.2 60.2 -2.0 39.5 92.6 215.4 -9.1 105.7

2012 80.9 82.5 15.5 59.7 133.3 295.3 71.3 166.7

2013 106.6 125.0 94.6 108.7 175.5 447.4 435.3 352.7

2014 66.3 66.0 -17.4 49.9 109.1 236.1 -80.2 141.8

2015 50.4 -20.2 -21.5 30.7 83.0 -72.2 -98.8 84.7

2016 33.0 14.8 -11.1 19.6 54.4 53.1 -50.9 52.8

2017 100.3 114.1 68.0 94.1 165.2 408.2 312.8 295.4

2018 59.5 59.7 1.2 40.1 97.9 213.8 5.6 105.8

2019 44.9 61.9 -5.2 37.3 73.9 221.5 -24.0 106.4

2020 83.1 71.0 12.3 55.4 136.8 254.0 56.6 149.1

2021 86.3 90.1 46.7 74.4 142.1 322.4 214.8 226.5

2022 -25.2 -4.8 -7.7 12.6 -41.5 -17.2 -35.5 31.4

2023 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

∆ TAF % ∆

Whiskeytown Cold Water Pool Comparison by Year (for Specified Date)

Historical - Current (Historical - Current) / Current

31